// Hide/show layer

function toggle(object) {
  if (document.getElementById) {

    if (document.getElementById(object).style.display == 'none') {
      document.getElementById(object).style.display = '';
    } else {
      document.getElementById(object).style.display = 'none';
    }
  }

  else if (document.layers && document.layers[object] != null) {

    if (document.layers[object].display == 'none')
      document.layers[object].display = '';
    else
      document.layers[object].display = 'none';
  }

  else if (document.all) {

    if (document.all[object].style.display == 'none')
      document.all[object].style.display = '';
    else
      document.all[object].style.display = 'none';
  }

  return false;
}